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From: Feng zhou <zhoufeng.zf@bytedance.com>
To: martin.lau@linux.dev, ast@kernel.org, daniel@iogearbox.net,
	andrii@kernel.org, song@kernel.org, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
	haoluo@google.com, jolsa@kernel.org, davem@davemloft.net,
	edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
	mykolal@fb.com, shuah@kernel.org
Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
	yangzhenze@bytedance.com, wangdongdong.6@bytedance.com,
	zhoufeng.zf@bytedance.com
Subject: [PATCH bpf-next 0/2] Introduce a new bpf helper of bpf_task_under_cgroup
Date: Thu, 20 Apr 2023 15:26:55 +0800	[thread overview]
Message-ID: <20230420072657.80324-1-zhoufeng.zf@bytedance.com> (raw)

From: Feng Zhou <zhoufeng.zf@bytedance.com>

Trace sched related functions, such as enqueue_task_fair, it is necessary to
specify a task instead of the current task which within a given cgroup to a map.

Feng Zhou (2):
  bpf: Add bpf_task_under_cgroup helper
  selftests/bpf: Add testcase for bpf_task_under_cgroup

 include/uapi/linux/bpf.h                      | 13 +++++
 kernel/bpf/verifier.c                         |  4 +-
 kernel/trace/bpf_trace.c                      | 31 ++++++++++++
 tools/include/uapi/linux/bpf.h                | 13 +++++
 .../bpf/prog_tests/task_under_cgroup.c        | 49 +++++++++++++++++++
 .../bpf/progs/test_task_under_cgroup.c        | 31 ++++++++++++
 6 files changed, 140 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_task_under_cgroup.c

-- 
2.20.1


             reply	other threads:[~2023-04-20  7:28 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-20  7:26 Feng zhou [this message]
2023-04-20  7:26 ` [PATCH bpf-next 1/2] bpf: Add bpf_task_under_cgroup helper Feng zhou
2023-04-20 18:22   ` Alexei Starovoitov
2023-04-21  2:31     ` [External] " Feng Zhou
2023-04-20  7:26 ` [PATCH bpf-next 2/2] selftests/bpf: Add testcase for bpf_task_under_cgroup Feng zhou

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